A friend of mine asked me if I know some nice sound/music related projects one can do with Arduino… but I’m really not much into the matter, so I’m asking for advice here. Does anybody have some suggestions?

there is a lot of stuff about that around the internet. i believe there is a midi library for arduino so programming it might not be too hard to do.
there is also this arduino shield for a nice looking sequencer

Thanks a lot people! Great projects btw! Some of them I heard of, some I didn’t.
I invited this friend of mine to follow the forums, so maybe he’ll join us here. He was quite interested in getting a Shruthi-1 kit as well btw.

Hi to all! I've signed in to the forum! Thank you rumpelfilter and thank you to the community for your suggestions....In the web there are so many projects to do with Arduino....and here I see another interesting projects....Thanks! I will inform you all when I decide which one I make....

Schrab- On your schematic, circuits on the arp control and shift button may not be complete. It shows them hooked to the Arduino, but then to nothing. Also, I was wondering how the HYPERNOISE 3000 feature is implemented, as it's not included in the schematic.

hallo,, i found nebulophone is really interesting arduino-based synth..i try to do the single side pcb design..(attached)..but there is too many jumper to use..
by the way..it’s not working properly..i cannot generate a separate tone from the the keypad..it sounds the same..and also, when i touch the stylus to one of the keypad,, it slowly muted..anyone had this problem before??

We made an Arduino-synth-filter-shield-thingy called SJS-One:
http://devsound.se/products-page/sjs1

It’s basically a Max 261 Switched Capacitor filter as a shield…
At the moment we have to different firmwares for it, one 4osc-synth and one drum/fx/noise-synth.
But it can be used to process external audio aswell, making it a kind of funky, midicontrolled, hackable filter with LP,BP,HP,AP..